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No. 608,623. Y Patented Aug. 9, |898.

W. H. PHELPS.

SHOE BRAKE AND HEAD. (Application med Aug. 23,` 1897.) (N6 Model.) 2Sheets-Shea* I.

ll llllllllllllE lll l le/vf? No. 608,623. Patented Aug. 9, |893.

W. HELPS.

SHOE B AND HEAD.

(Application led Aug. 23, 1897.)

(No Model.) 2 Sheets-Sheet 2.

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Unteren tamarins-1 Fatrieni @einen WILLIAM II. PHELFS, OF FORT VAYNE,INDIANA.

`SHOE BRAKE AND HEAD.

SPECIFICATION forming part Of Letters Patent NO. 608,623, dated August9, 1898. Application tiled August 23, 1897. Serial No. 649,138. (Nomodel.)

To (all whom, t may concern:

Bc it known that I, IVILLIAM II. PHELPS, a citizen of the United States,residing at Fort Vayne, in the county of Allen, in the State of Indiana,have invented certain new and useful Improvements in Shoe Brakes andIIeads; and I do hereby declare that the fol" lowing is a full, clear,and exact description of the invention, which will enable others skilledin the art to which it appe'rtains to make and use the same, referencebeing had ing or descending heavy grades, is very clestructive to theshoes, indeed, so much so that on roads of very heavy grades inmountainous countries the shoes often have to be renewed upon nearlyevery trip; and the object of my invention is to provide a removableshoe which can be readily attached or detached from the brakehead byhand without the aid of tools, yet when in its seat issecurelynon-detachable by anyjolting or jarring of the train. The shoe is verysimple in construction, is reversible, and "can be attached and detachedfrom the brake-head by any person without mechanical knowledge. I attainthis object by the construction described in the following specificationand illus` trated by the accompanying drawings, in which Figure l is aside view of the brake head and shoe attached to the brake-beam. Fig. 2is a front view of Fig. l. Fig. 3 is a detail plan of the brake-head.Fig. 4. is a longitudinal sectional view throughthe line am, Fig. 5.Fig. 5 is a front view of the brake-head with the shoe removed. Fig. Gis a detail plan of the detachable shoe; Fig. 7, a side view of thesame; Fig. S, a front view of the pivoted key which fasteus the shoe inthe brake-head. Figs. 9 and l() are plan and side views, respectively,of Fig. 8. Fig. ll is alongitudinal central sectional view of the shoebrake and head with the parts iu proper position, showing a modiiicationof the manner of securing the bolt upon which the locking-key ispivotally mounted.

Similar reference-numerals indicate like parts throughout the severalviews.

l is an ordinary brake-beam to which the brake-head 3 is secured by aproper bolt 2 through the perforation 2 in the head or other suitablemanner, and ll is a perforated lug integral with the head, by which itis suspended from the car-sill ina welhknown manner. The brake-head 3has a concave face conforming approximately to the curvature of thewheeltread and is provided on its face with a longitudinal L-slot 5 andtransverse slots or grooves 6 and 7. At the upper end oi' the brake-headis a slot 12, communieating' at its lower end with the slot G and eX-tending laterally from one side of the head partly through it andoutwardly at the top, asshown in Figs.` 3 and 4. The shoe 4 has itsinner face conformed to the face of the head l3 and its outer face tothe curvature of the car-wheel tread, and on its inner face are twoT-shaped lugs 14. and 15, adapted to slidably enter the transverse slots6 and 7 until they register with the longitudinal slot 5.

At the upper edge of the brake-head is a key S, pivotally mounted in theslot 12 by a bolt 1S, inserted in the perforations 9 in. the

key and head, as shown in Figs. 4i and S, and secured therein in anysuitable manner. The perforation 9 through the key is out of the centerof gravity and near the inner and upper edges of the key, so that by itsweight it will normally hang with its lower edge in the slot 6. The key8has also upon its outer edge an integral lug 10, and the upper inneredge is rounded to admit of its free pivotal movement in the slot 12,and upon its lower edge it has a forwardly-projecting liange slightlyserrated and adapted when the key is seated to project into the slot 6.The outer sides 1G and 17 of the lugs la and 15 are also serrated inorder to more securelyretain the key from displacement by the jarring ofthe train or the upriding of the shoe. This construction of the serratededges of the key and.V lugs is not indispensable and may be omitted.Instead of the perforation 9 extending through the head, as shown inFig. 4, it need only pass partly through and have its other end Hushwith the face of the head, with the shoe ex IOS tending partly orentirely above and covering the end of the bolt, as shown in Fig. 11,and by which construction it is obvious that the bolt will beeffectually secured so long as the shoe is in position on the head.

The mode of using the device is as follows: Taking hold of the lug 10,the key 8 is thrown up until the lower edge is completely out of theslot 6. The shoe-lugs 14E and 15 are pushed laterally in the slots 6 and7 until they register with the slot 5. The shoe will then readily dropuntil the lower lug rests in the end of the slot 5. Then throwing` thekey down the flange 13 will engage with the slot 6 against the lug ofthe shoe and securely fasten it within the head. To remove the shoe,throw up the key 8 and raise the shoe until the lugs 14: and 15 registerwith the transverse slot and pull it out the reverse of the manner itwas placed in position.

A shoe by this construction can be readily detached and anothersubstituted without the use of any tool, as the engagement of the keywith the top of the lug is not so close as to prevent its elevation withthe hands; but if it should stick by reason of dirt a slight blow with alink or coupler will loosen it. There are no nuts to loosen or bolts toremove or to be insecurely fastened by careless train-hands, as thedevice is practically selflocking. The ends of the shoe are alike inconstruction, so that it makes no difference which end is used for theupper, and it can be reversed when desired.

I do not confine myself to the particular forms of the slots and lugsdescribed, as it is obvious that they may be varied without departingfrom the scope of my invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A brake-shoe having lugs as described, in combination with abrake-head provided with longitudinal and transverse intersecting slots,adapted to receive and engage said brake-.shoe lugs, and also providedwith a slot 12 constructed as described; a key 8 pivotally mounted insaid slot 12, and having upon its outer edge a lug 10 and upon its loweredge a forwardly projecting flange adapted when the key is seated toproject into the upper transverse slot, and prevent the upward riding ofthe shoe; all arranged substantially as described.

2. A brake-shoe havin g T-headed lugs upon its inner face with theirouter edges serrated, combined with a brake-head having a faceconforming to the inner face of the shoe, and provided with transversegrooves or slots, and intersecting a longitudinal slot, adapted toreceive and engage said lugs as described, and also provided at itsupper part with a slot 12; a key 8 and secured therein by bolt 18, andhaving upon its outer edge. a lug 10 and upon its lower edge aforwardly-projecting flange serrated upon its lower edge, and adaptedwhen the key is seated to project into the upper transverse slot of thebrakehead and detachably engage with the adjacent serrated edge of theupper lug; all arranged as described and shown.

Dated and signed at Fort Wayne on this 16th day of August, 1897.

WILLIAM II. PIIELPS.

Vitnesses:

ADELAIDE KEARNs, DUDLEY CAMPBELL.

